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Swapped to a single walbro today, was a bitch to get in the tank but with a little determination and repositioning it went in.

Definitely harder than some 'online' stories may suggest. The low pressure line from inside the tank is fat, and you need to step it down to the walbro pump. That makes it very difficult (especially on a holiday when you can't buy anything).

My only concern and one that I'm going to fix tomorrow is that the leads going to the in tank pump are a bit on the small side like 16 or 18 gauge, and I think the Walbro I crammed in there needs around 12 amps at max. I'm thinking since I pulled the external pump leads inside the car and taped them up under the seat I'll just extend those and integrate them into the new pump, as they are beefier. They all run on the same circuit anyways @15 amp.

Trip to Ottawa went fine, did about 11 hours of highway and 1.5 hours of inner city driving.

Contrary to what people might think turning the key to the 2nd position doesn't activate the pumps, only when the key is turned to 'start' do the pumps come on. I can tell because the walbro has a whirring noise. It's not too noisy but if you have a bone stock silent e30 you may notice it more. With my exhaust it's not an issue!

I have a Stebro exhaust on my ride so I'm gonna imagine that I'd never hear the Walbro pump should I do the swap. However, this is all speculation as I've not driven my E30 let alone start it yet.. LOL.